Patents by Inventor Volkner Rheinberger

Volkner Rheinberger has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Dental materials based on polysiloxanes
    Patent number: 6569917
    Abstract: The invention relates to dental materials which contain at least one polysiloxane based on one or several silanes according to formula (I) [(Wq—R6—Z)p—R3]mY—R2—SiXnR13−n  Formula (I) in which X stands for a halogen atom, a hydroxyl, alkoxy and/or acyloxy group; n is equal to 1 to 3, R1 stands for an alkyl, alkenyl, aryl, alkylaryl, arylalkyl group; R2 stands for an alkylene group; R3 stands for a p-time substituted, straight, branched or cyclic, saturated or unsaturated, aromatic or aliphatic organic radical with 2 to 40 carbon atoms and optionally 1 to 6 heteroatoms; R6 stands for a q-times substituted, straight, branched or cyclic organic radical with 1 to 20 carbon atoms or is absent; p is equal to 1 to 6; q is equal to 1 to 6; Y stands for —NR4—, N or —(C═O)—NH—; m is equal to 2 for Y═N and equal to 1 for Y═—NR4—, or —(C═O)—NH—; R4 stands for an alkyl or aryl group; Z s
    Type: Grant
    Filed: January 20, 2000
    Date of Patent: May 27, 2003
    Assignee: Ivoclar AG
    Inventors: Norbert Moszner, Thomas Völkel, Sabine Stein, Volkner Rheinberger